Library of Congress Classification

A General Works: AE Encyclopedias; AG Dictionaries
B Philosophy/Psychology/Religion: B Philosophy; BF Psychology; BJ Ethics; BM Judaism; BR Christianity; BS The Bible; BX Christian denominations
C History: CB History of civilization; CT Biography
D History (except American): DA Great Britain; DC France; DD Germany; DK Russia; DS Asia; DT Africa
E History - American
F History: United States (local): Americas except U.S.
G Geography/Anthropology: GB-GC Geography & oceans; GN Anthropology; GV Recreation & sports
H Social Sciences: HA Statistics; HB Economics; HD Management, human relations; HM Sociology; HQ Family, marriage, women; HV Social service
J Political Science: JC Political theory, politics; JK United States
K Law

L Education: LA History of education; LB Theory & practice; LC Special aspects of education
M Music: ML Literature of music; MT Music instruction
N Fine Art: NA Architecture; NB Sculpture; NC Drawing; ND Painting
P Languages & Literature: PA Classical language & literature; PC Romance languages; PE English language; PN Literature history/collections/drama; PR English literature; PS American literature; PT German literature
Q Science: QA Mathematics/computers; QC Physics; QD Chemistry; QH Biology; QK Botany; QM Human anatomy; QP Physiology; QR Microbiology
R Medicine: RA Public aspects of medicine; RT Nursing
S Agriculture
T Technology: TR Photography
U Military history
V Naval science
Z Bibliography & Library Science

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